Improvement in screw-drivers



c. H. BUSH. .SCRE W-DRIVER.

.Patenbed Dec. 19, 1876.

hi.: wforne 63 6 UNITED STATES PATENT OFFICE.

CHARLES H. BUSH, OF FALL RIVER, MASSACHUSETTS.

IMPROVEMENT IN SCREW-DRIVERS.

Specification forming part of Letters Patent No. 185.486, dated December 19, 1 876; application filed October 16, 1876.

To all whom it may ooncrn:

Be it known that I, CHARLES H. BUSH, of Fall River, of the county of Bristol, of the State of Massachusetts, have invented a new and useful Improvement in screw-Drivers; and do hereby declare the same to be described in the following specification, and rep resented in the accompanying drawings, of which Figure l is a top view, and Fig. 2 a longitudinal section, of a screw-driver embracing my invention.

1`he operation of turning a screw into hard Wood by means of a screw-driver is often greatly facilitated by first applying a small amount of grease, soap, or tallow to the point or thread ot' the screw. It is rarely the case, however, that a person has at his command or convenient to him neans of so greasing or applying a lubricant to a screw. The object of my invention is to enable him to readily accomplish such.

In carrying out my invention or new article of manufacture, I combine, with a screw-driver of ordinary Construction, a grease holder or receptacle, open or provided with a mouth to enable a screw to be introduced, point foremost, into the holder, or a mass of tallow, soap, or grease, when in such holder.

In the drawiugs, A denotes the blade, and B the handle, of a screw-driver, arranged and connected in the usual way. G is the grease receptacle or chamber, bored or formed in the handle, near its butt, and covered by a metallic plate, D having a mouth or bole, a, arranged in it, as shown. This receptacle is to be filled or supplied with a mass of tallow, soap, or other suitable lubricant, into which a screw may be introduced by inserting it through the mouth a.

I claim- As a new or improved article of manufacture, a screw-driver handle provided with a. lubricautreservoir, constructed as herein shown and described, and for the purpose specified.

OHAS. H. BUSH.

Witnesses:

R. H. EDDY, J. R. SNow. 

